unmentionables

The show understands that implied nudity is worlds funnier than actual nudity, and goes to delightful lengths to keep Marge and Homer’s unmentionables out of view.

His little man-o'-war top and unmentionables were full of sand but Cissy was a past mistress in the art of smoothing over life's tiny troubles and and very quickly not one speck of sand was to be seen on his smart little suit.

Referring to a child’s sailor suit.